Crystal Ball of Storms (Patreon)

Wondrous item, legendary (requires attunement)

This crystal ball is about 6 inches in diameter. Inside is a perpetual storm that crackles with ferocity. While touching it, you can either cast the scrying or call lightning spell with it, using a spell save DC of 17.

If the scrying spell lasts for the full duration, you can choose to cause a storm to form above the sensor's location at the time the spell ends, as if by the control weather spell. The storm appears outside and in the sky above that point. The spell creates rain, hail, or snow (your choice) in stormy wind conditions; the temperature in the area drops by 10 degrees Fahrenheit. The storm then remains for the next 8 hours, and this property of the crystal ball can't be used again until the next dawn.

Alternatively, you can cast call lightning from the crystal ball while looking through its sensor. The sensor must be outdoors, and it must be in stormy conditions. You don’t need to concentrate on this call lightning to maintain it during its duration, but it ends if scrying ends. When this call lightning spell ends, it can't be used in this way again until the next dawn.

If the crystal ball is destroyed, the storm appears outside and centered in the sky above that point. The storm recreates the effects of the control weather spell, as determined by the GM. The storm is permanent; only a wish spell can dispel it.

I am the eye of the storm. I see all, and no shelter can keep you safe from my wrath.